APA (7th ed.) Citation

United States. Central Intelligence Agency. Printing & Photography Group. (1997). National flags of the world, September 1997. U.S. Central Intelligence Agency, Office of Support Services, Printing & Photography Group.

Chicago Style (17th ed.) Citation

United States. Central Intelligence Agency. Printing & Photography Group. National Flags of the World, September 1997. [Washington, DC]: U.S. Central Intelligence Agency, Office of Support Services, Printing & Photography Group, 1997.

MLA (9th ed.) Citation

United States. Central Intelligence Agency. Printing & Photography Group. National Flags of the World, September 1997. U.S. Central Intelligence Agency, Office of Support Services, Printing & Photography Group, 1997.